site: small refactor for promise all handler

lib/Pooru/Site/Controller/Media.pm

@@ -62,20 +62,16 @@ sub show ($self)
 	my $media_p = $self->ua->get_p($media_endpoint);
 	my $similar_p = $self->ua->get_p($similar_endpoint);
 	Mojo::Promise->all($media_p, $similar_p)->then(sub ($media, $similar) {
+		my ($media_tx, $similar_tx) = ($media->[0], $similar->[0]);
+
 		return $self->render(
 			text => "Backend error.",
 			status => 500,
-		) if $media->[0]->error;
+		) if $media_tx->error;
 
-		my $json = $media->[0]->res->json;
+		my $json = $media_tx->res->json;
-		my @tags = map +{
-			name => $_->{name},
-			kind_id => $_->{kind_id},
-			display => $_->{display},
-			count => $_->{count},
-		}, $json->{tags}->@*;
 
-		if (!$similar->[0]->error) {
+		if (!$similar_tx->error) {
 			my @similar_media = map +{
 				score => $_->{score},
 				show_media_url => $self->url_for("show_media",
@@ -83,7 +79,8 @@ sub show ($self)
 				    ->query(tags => $tags),
 				media_src => $self->url_for_file(
 				    $self->storage->get($_->{id})),
-			}, $similar->[0]->res->json->{media}->@*;
+			}, $similar_tx->res->json->{media}->@*;
+
 			$self->stash(similar_media => [@similar_media]);
 		}
 
@@ -98,7 +95,7 @@ sub show ($self)
 				src => $self->url_for_file(
 				    $self->storage->get($json->{id})),
 			},
-			tags => [@tags],
+			tags => $json->{tags},
 		);
 	})->wait;
 }